This command takes all previously added collision objects (including transparent ones) and builds optimized collision data ready for ray casting.

LM Build Collision Data  

This command does not need any parameters.

This command does not return a value.

This command only needs to be called once after you have added all the objects you want to cast shadows, and at least one collision object must have been added. The DarkBasic objects from which they were added no longer need to exist since the necessary data was extracted in the LM Add Collision Object command, this command simply uses this data to prepare the lightmapper for ray casting.